Glass-working furnace.



No. 864,665. PATENTED AUG. 27, 1907. I. A. MILLIRON .& G. W. IRWIN.

GLASS WORKING FURNACE. APPLICATION FILED JAN.5,1906. RENEWED NOV.20,1906

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IRA MILLIRON AND CLIFTON W. IRWIN, or FRANKLIN, PENNSYLVANIA; SAID IRWIN ASSIGNOR TO SAID MILLIRQN.

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Specification of Letters Patent.

Patented Aug'. 2'7, 190?.

Application filed January 5. 1906, Serial No. 294.780. Renewed November 20, 1906. Serial No. 3 i4,316.

flo all whom it may comm:

Be it known that we IRA A. MILLIRON and CLIFTON.

W."I RWIN, citizens of the United States, residing at Eranklin,: in the county of -Venango and State of Pennsylvania, have inventedcertain new and useful Improvements in Glass-Working Furnaces, of which the following .is-za specification, reference being had therein to the accompanying drawing.

Our invention relates to glass-working furnaces, Y10.

and more particularly such as are used, in connection wit lithe drawing of glass articles from a body of molten contained in a j Figure .lis a planlview of the furnace.

'side elevation of same. 3 is a central, vertical section online 3-3 of Fig. 1. Fig. 4 is a view of the 'furna'ce'partly in elevationand partly in section.

The. same reference letters indicate identical parts said hood is movable, pipe 12 is adapted to admit of ln the several views.

The: object of our invention is to provide a. portable 'jglass-worki'igjurnacewhich be placed in convenient proximity to a melting tanker other source supply for the purpose of receiving therefrom, and conveying sameto a drawingapparatus without the cessation or interruption of the 'applica-.

. tion of heat thereto.

A further. object of our invention is to provide a more .efiicient, .practical and convenient means than has heretofore been devised for emptying the pot or glass receptacle of any glass which may remain. therein after'the drawing operation, it being preferred that the pot shall-contain only a measured quantity of glass'very little in excess of that required for'the drawing-of a single article, and that after each drawing operation the pot shall be emptied of such excess, if.

any, before refilling preparatory to the drawing of another article.

The construction of-our preferred apparatus is substantially as follows:

tudina lly of said pipe.v

" Through the bottom of I 'hole'adapted to be closed by the plug or closure, 13,

" purpose is preferably mountsd upon wheels 7-, which are constructed to travel upon the vertically-movable track 7.

Furnace 1 is so mounted upon truck 2, that it is capable of being-horizontally revolved forthe-purpose of bringing either pot into alinem ent with a drawing apparatus, or into a glass-receiving position near or beneath the delivery chamber of a melting, tank, (not shown) or into convenient proximity to any other means by which glass may be delivered into said pots. Fuelmay'be delivered to the several heat chambers by the following means: A main fuel-supply pipe 8 is afiiired to' the truCk-Zdirectly at the center thereof and is connected to the lower portion of "furnace l at its pivotalpoint, bymeansof the swivel joint 9; above said joint the pipe branches and is carried out through each side of the furnace land a branch 10, 11, thereof is carried into each side of the heat chambers 3", 4..

of the furnace, and two other branches 12 thereof are carried to the heat'chamber of the bood,-a branch entering each side of said chamber. .lnasinuch as and a telescope join tat 12, which is ample provision to admit of the hood being moved to-and-fro over the top of the'furnace.

. -A-telescope joint is provided in themain fuelsupply 7 pipe 8 at 8 to admit of the truck 2 travelinglongi' each pot 3, 4, is formed a 14, which closures are of similar construction, each 'preferably consisting of a mushroom-shaped head,v

extremity resting upon a lever'15, 15 said lovers are.

each fulcrumed in a bracket 16, 16 which brackets are affixed to the bottom of the iurnace 1, and upon the other end of s'aid lever is placed a counter-weight 17, 17: upon one side of the frame of truck 2 is constructed a track 18, upon which said counterweight rests as it travels over said track, this raises the counterweight and causes the opposite end of thelever upon which the stem rests to fall, thus permitting the head of the closure to drop away from its seatat the "lower opposite end of its respective lever and the thereonresting closure, .andcauses the head Ofisaid closure to rest in its respective seat in the bottoniof the pot and thus close the opening.

Applicants particularly point out the fact that they do not wish to confine themselves to any particular 6 form or size of opening in the bottom of the pots, or to any particular form of closure therefor or means foroperating the closure. Said opening could be comparatively small onit could be nearly or quite as large as the diameter of the pot, and the closure thereforcould 10 be relat z' 'ly, proportioned, and in either the spirit or is is scope of our invention would not be departed from,"

or the practical operation of the construction be interfered with.

When the furnace is in operationfa quantity of glass supplied to oneof the pots (pot 3, as shown in the drawing) from any suitable' source; said pot is then brought into alinem'ent with a drawing apparatus and an article is drawn therefrom, as shown at A: when the supply of glass in said pot is used up, the furnace is fiturhed horizontally ahalf revolution, which causes the v counterweight 15' to rest upon the track 18, and this causes the closure 13 to drop away from the opening in the bottom of said pot, and any glass remainingin the pot flows out through said opening into the heat-chamoer 3, from which chamber said-glass may blow by way half-revolution, the closure of saidpot 4 is dropped, the

hood is positionedabove said pot, and the unused glass emptied from the same. This it will be understood that while one pot is being drawn from, the other pot is being emptied of any remaining glass, and being prepared to be refilled and placed in readiness for the next drawing operation.

i The track 7, upon which hood 5 travels, is adapted .to be raised and lowered by'means of the eccentric levers 20, located'atcach end of the furnace. This construction is for the purpose of raising the lower face of said hood free from said furnace, to effect its portability, or for causing thesame to rest directly uponthe top of the furnace, thus preventing the escape of heat from beneath the hood.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. A glass-working furnace constructed to revolve horizontally, pots located in the top of said furnace, there being'a heat-chamber beneath said pots, means of introducing fuel to said chamber, a hood movably mounted on top of said furnace 'and constructed so as to be located ovencither of said pots, :1 heat-chamber in said hood, and means of generating heat in said chamber.

2. A horizontally rcvoluble furnace, glass receptacles hr-the top of said furnace, there being an opening in the bottoni of each of said receptacles for the purpose specilied, a closure for said openings, means for actuating said closure, in j-omhination with a hood mounted upon said furnace. constructed to be positioned over either of said receptacles, a heat chamber in said hood and means of generating heat in said chamber.

3. Iii a glass working furnace, the combination of a furnace, glass receptacles located therein, and each having an opening in its bottom, a means of closing said opening, and a hood located above said furnace, said hood having a heat chamber therein and constructed so that said chamber may be positioned over either of said pots.

4. A glass working furnace, a portable and revoluble furnace, having drawing pots in the top thereof, a movable means located above said pots for applying heat thereto, there being. an opening in the bottom of each of said pots for the purpose set forth, and means of closing said openings.

5. In a glass working furnace, the combination of a plurality of drawing pots, each provided with an opening in the bottom, and means for closing said opening, of a heat generating means movably mounted above said pots and constructed to apply heat into the interior of any of said pots, as desired.

' 6. In a glass working furnace, a plurality of drawing pots, each provided'with an opening in its bottom, and having a suitable closure, in combination with one heat generating means movably mounted above said pots, and constructed to be brought into register with any of said pots, for the purpose set forth;

'7. In apparatus for the manufacture of glassware, the, combination with a support, and a drawingpot adapted to -ontain a measured quantity of molten glass mounted the oh, of an opening in the bottom of said drawing-pot, and a removable closure for said opening, substantially as described.

8. In apparatus for the manufacture of glassware, the combination with a support, a drawing-pdt adapted to contain a measured quantity of molten glass mounted thereon, andmeans above said receptacle for applying heat thereto, of an opening in the bottom of said drawingpot, and a removable closure for said opening, substantially as described. I

9. In apparatus forthe manufacture ofglassware, a receptacle for i nolten glass," movable means for applying heat thereto, an opening in the bottom of said receptacle, and a removable closure for. said opening, substantially as described i 10. In apparatus for. the manufacture of glassware, the combination with a receptacle for molten glass, an opening in the bottom of said receptacle, and a removable closure for said opening, of a removable cover for said receptacle,

an opening insaid cover, and means .for introducing heat through said ';opening into said receptacle, substantially as described.

11. In apparatus for the manufacture of glassware, a movable carrier, a receptacle for molten glass mounted thereon, a'n opening in the bottom of said receptacle, a movable closure for said opening, and means operated by the movement of the carrier for operating said closure, substantially as described.

12. In apparatusfor the manufacture of glassware, a furnace, a plurality of receptacles for molten g ass mounted thereon, a removable cover for said receptacles, an opening in said cover, and means movable with the cover for supplying fuel through said opening, substantially as described;

13. In apparatus for the manufacture of glassware, a furnace, a plurality of receptacles for molten glass mounted thereon, a heating-chamber for said receptacles movably mounted on'said furnace, an opening in said heating-chamber, and means movable with said heatingchumber for supplying fuel thereto through said opening, substantially as described.

14. In apparatus for tl e manufacture of glassware, a support, a plurality of receptacles for molten glass mounted thereon, a cover-support carried by said recepiacle-support, a cover for said receptacles movably mounted on said cover-support, and means for raising and lowering said cover-support, substantially as described.

15. In apparatus for the manufacture of glassware, the combination with a support, a receptacle for molten glass mounted thereon, and a heating-chamber below said receptacle, of a second heating-chamber movably mounted on said support and adapted to be shifted thereon into andmovnble carrier, a plurality 01' receptacles for mnlten glass out of position above said receptacle, means for supplying fuel to said heating-chambers respectively, and means fur rlislmrglng waste glass from said receptacle, substantially as described.

1!". 1n npparzuus for the manufacture or glassware, a movable barrier, a receptacle {or molten glasq mounted thereon, a heating-chamber within the carrier and below said receptacle, and means for impplying,- fuel f0 said chamber, substantially as describel l.

1 'I In apparatus for the manufacture of glassware, tr

mounted thereon, a plurality ot heating-chambers there for within the carrier, and means for supplying fuel to said chambers respectively, snbstnntlally as described; In testimony whereof we alfix our slgnatnreq in presg 15 ence of two Witnesses.

IRA A. MILLIRON. CLIFTON W. IRWIl Witnesses llunmrr N. Srmcn,

E. R. INMAN. 

